Whether the product is OEM based on product source and product quality.

1. Product source: Pay attention to the production place and manufacturer of the product. If the product is not produced in the area where Renhe Pharmaceutical is located, or if the manufacturer is not Renhe Pharmaceutical, then it is an OEM product.

2. Product quality: Understand the product quality and reputation of Renhe Pharmaceutical. If the quality of the product is significantly different from other products of Renhe Pharmaceutical, then it is an OEM product.